remove doubled event listeners
remove doubled event listeners

pinry/pinry,pinry/pinry,wangjun/pinry,lapo-luchini/pinry,pinry/pinry,rafirosenberg/pinry,Stackato-Apps/pinry,pinry/pinry,dotcom900825/xishi,lapo-luchini/pinry,MSylvia/pinry,rafirosenberg/pinry,Stackato-Apps/pinry,QLGu/pinry,MSylvia/pinry,QLGu/pinry,MSylvia/pinry,supervacuo/pinry,lapo-luchini/pinry,QLGu/pinry,supervacuo/pinry,Stackato-Apps/pinry,dotcom900825/xishi,supervacuo/pinry,lapo-luchini/pinry,wangjun/pinry,wangjun/pinry